I found the field of Chemistry very interesting. Saw the article Cooperation of biopolymer chitosan with hydrogen peroxide for ipso-hydroxylation of arylboronic acids under green conditions published in 2019.0. Recommanded Product: 99-93-4, Reprint Addresses Kim, SH (corresponding author), Dankook Univ, Dept Chem, 179 Dandaero, Cheonan 31116, South Korea.. The CAS is 99-93-4. Through research, I have a further understanding and discovery of 4′-Hydroxyacetophenone
Oxidative hydroxylation of arylboronic acids to the corresponding phenolic compounds under metal- and base-free aerobic conditions is successfully demonstrated on a biopolymer support (chitosan or chitosan immobilized onto carbon nanotubes (CNT@Chitosan)). Hydrogen peroxide, as an eco-friendly oxidant, is compatible with the biopolymer supports and provides hydroxylation products in an efficient manner. The CNT@chitosan biopolymer support is particularly interesting for its potential recyclability. (C) 2019 Elsevier Ltd. All rights reserved.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles